Added script for mouse battery levels

.config/scripts/util/mouse-battery.sh

@@ -0,0 +1,19 @@
+#!/bin/sh
+
+DETAILS=$(rivalcfg --battery-level)
+STATUS=$(echo $DETAILS | cut -d' ' -f1)
+LEVEL=$(echo $DETAILS | cut -d']' -f2 | tr -d '[:space:]')
+
+if [ "$STATUS" != 'Discharging' ] && [ "$STATUS" != 'Charging' ]; then
+  cat /tmp/last-mouse-level.txt
+else
+  if [ $STATUS == 'Discharging' ]; then
+    STATUS_EMOJI='🐁'
+  else
+    STATUS_EMOJI='⚡'
+  fi
+
+  echo "| $STATUS_EMOJI $LEVEL |" > /tmp/last-mouse-level.txt
+  cat /tmp/last-mouse-level.txt
+fi
+